Locomotive



Jurgen, 1930. SMVAUCLAINETAL 1,765,251

LocoMOTIyE Filed May 10, 192% 4 Sheets-Sheet 4 E\. l A

Patented June 17, 1930 SAMUEL M. vAUcLAIN,

OF`ROSEMONT, ANI) HARRY GLAENZER,

PENNSYLVANIA ICE OF PHILADELPHIA,

PAENT Locomorrva Application med may 1o,

Our invention relates to certain improvements in.twocylinder, non-articulated locomotives.l

One object of our inven means whereby cylinders can 'be used.

A further object of the invention is to so construct the locomotive that the vertical plane of travel of .the main rod will be over the side rods. And a still further object of the invention is to increase-the size of the'connecting rod and wrist-pin bearings.

In the accompanying drawings:

Fig. 1 is a side view of a locomotive, the wheels being shown by dotted lines to more clearly illustrate the invention;

Fig. 2 is a plan. view, showing the cylinders -and rods in full lines,andthe frames,

n dotted lines;

2o axles and wheels i Fig. 3 is an enlarged partial side view of the locomotive; 'E Fig. 4 isa sectional'view on the line 4 4,

Fig. 5 is a detached side view of one of the main rods;

Fig. 6 is a side side rods; 1

gig. 7 is a plan view of said main site rod; an

` Que to clearance limits, in width specially, the size of cylinders is limited, and when larger diameter cylinders are considered, the question of connecting rod and wrist pin bearings becomes a serious problem, since the clearance widthsv enter into this also.

In the usual construction, the main rod moves in an vertical plane alongside' ofl the, side rods, andthe pin bearings. of these rods have been a source of annoyance and expense on account of excessive bearing pressures of they modern locomotive. l In our construction, where thevertical plane of travel ofthe mainl rod is over and above the 'side rods, larger bearings for both the main'rod and side rods are secured. This construction necessitates the location of thev cylinders at an angle and at a much greater tion is-to provide o f large capacity View of oneof the main illustrating a modification ings 171` in the main side rod and through over a single member 1929.` Serial N0. 361,936.

, and in order to allow for cylinders of incre recessed at each side to receive the enlarged cylinders, drawings.

In the present instance, six wheels are proposed as the of these will be required to increased traotive and theboiler is i as clearly shown in Fig. 4 of the s5- pairs of driving adhesive weight take care of the power of larger cylinders, ncreas'ed incapacity. e0 Referring to the drawings: 1-1 are the side frames of a locomotive. 2 are the axles which are adapted to boxes located between the pedestals 3 of the frames 1. he wheels 4, which are shown in dotted lines, are mounted on the axles 2, and each wheel has a wristpin 5. The cylinders 6 are arra shown. A piston rod 7 has a cross-head 8 which is adapted to slide in ways" 9. Pivotally connected to the cross-head 8 by a pin 10 is a main rod 11, made as shown in detail Fig. 5, therod being curved at its kouter end 12 and having an eye 13 provided with enlarged side wearing surfaces 14 which are adapted to the main side rod 15, shown in detail Fig. 7; The end' with the enlarged side surfaces extends into a slot 16 in the main side rod 15, and a knuckle pin 17 extends through opennged atan angle as the eye 13 inthe main rod 11. In some instances, this construction may be reversed and the main rod may have a jaw which lits the main side rod having a single member instead of being provided`witha` slot.

The ends of the main side rod are coupled to the pins 5a of certain wheels. The front `rod 18 and the rear rod 19, as well as the intermediate rods 20 and 21,'are shown'as being each separately operating on the crank pins 5--5a through the usual yrod bushing. In some instances, the main side rod 15 may be made as shown in Fig. 8, with jaw i tight connections 15 at-each end which are 95 connected to the intermediatel side rods 20-21,Iand these again may have'the usual stub connecting them to the front side rod 18"i and rear side rod 19a.

The cvlinders 6 6 form nn nhwwl mw 1M seY 2 means-i ot the saddle 22 which may be made in two side rod located on each side of the locomotive parts as; shown or may be made in a single outside of the trarne thereogt; and a main rod casting'-the: saddle being secured to the side located in a vertical plane of travel'abovei frames in any manner desirable. Under the side rod, the main rod being connected at each cylinder, in the present instance, is a its orward end to a cross-head and at its im valve chest -23 having what is known as a opposite end to a main side rod. Caprotti valve mechanism. The internal et. rEhe combination in a locomotive, oit mechanism of this 'valve terms no part ot the main frames; a cylinder structure; two elepresent invention. vated cylinders arranged at an `incline; a

Secured to;the,underside of the cylinder valve .mechanismct the Caprotti type lo- 75 saddleQQ is' a. trame 2e, carrying transverse cated undereach cylindergmeans or'operatpins 25a, which. forms the u'lcrum 'lor an ing the said valve mechanism; a piston rod equaliaing beam 25. `Within the trame is lO- and a cross-head for each cylinder ,a seriesot cated the gearing 26 of the Caprctti valve driving wheels; crank pins on the said mechanism. rl`he equaliaingl beam 25 rests wheels; side rods mounted on the crank pins; 80

upon the truck 27 at the forward end of the and. a main rod connecting the cross-head locomotive vand is coupled to the bar 28 of the with the main side rods, said main rod being equalizing mechanism of the locomotive. locatedin the same vertical plane as the main llt will be noted in referring to Fig. 4rthat side rods and' located above said rods.

in order to properly locate the cylinders in v5. The combination in a locomotive, of g5 the smoke-box 3l of the boiler '33, pockets 3() `main frames; a cylinder structure; two ele- 1 are' formed in the shell 29 of@ the smoke-box vated cylinders arranged at an incline; 'a 31, and these'pockets are closed by curved valve mechanism located undereach cylinplates 32. der; means for operating the said valve l While we haveillustratedalocomotivehavmechanism; a piston rod -and fa cross-.head 90 ing six pairsof Adriving wheels,- any numbery for each cylinder; a series of driving wheels; of pairs of driving wheels may be used as the crank pins on the said' wheels; side rods adhesive'fweight dft the locomotive may warmounted on the crank pins; and a .main rod rant. a connecting th'e cross-head with the main side 3o vIn .the drawings two-wheel trucks are rods, said main rod being located in the same e5 shown, but four-wheel trucks may be used if verticalplane as the' main side rods and loi desired cated above said ro s. 1 .The valve gearj shown inthe drawings is SAMUEL M. VAUCLAIN.

known as a v C apr'otti valve gear. It will HARRY GLAENZER. lals be understood that" any suitable valve gear l may be used'withou't departing rfrom the essential features of the invention'.

f It will be seen by the above construction thaf'we are enabled to make a h gh 'pres- 40' sure, two-cylinder, lnon-articulate locomoi m5 tive-0f larger capacity than heretofore, and A l one which will be within the clearance limits.

We claim: v 1. The combination ina locomotive, of a cylinder; a piston rod and a cross-head; a' Y 110 main side rod and a main rodhaving its forward end connected to the cross-head and curved at the rear end and cou led to the l middle of the main side rod and coated in a vertical plane above the saidside rod. 1 15 2. The rcombination in a locomotive, o1t a cylinder; a piston rod and across-head; a y main side .rod having' a slot therein a main .rod pivoted at its forward end to the cross- 56 head and-havinga dependin portion at its 120 rear end extending intothe s ot'of the main f side rod; and a knuckle pin connecting the `main rod'to lthe main side rod; V v. o The combination in a locomotive, of a loo cylinder structure mounted on a frame and i v 1725- havingtwo cylinders of large diameter; a

boilermounted on the frame and 'having a smoke box, said; cylinders extending into f pockets in the smoke-box, each cylinder hav- .66 ing a piston rod anda cross-head; a main i 130 

